| -rw-r--r-- | rsync/job.h | 99 |
1 files changed, 99 insertions, 0 deletions
diff --git a/rsync/job.h b/rsync/job.h new file mode 100644 index 0000000..33c0cd7 --- a/dev/null +++ b/rsync/job.h @@ -0,0 +1,99 @@ +/*= -*- c-basic-offset: 4; indent-tabs-mode: nil; -*- + * + * librsync -- the library for network deltas + * $Id$ + * + * Copyright (C) 2000, 2001 by Martin Pool <mbp@samba.org> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public License + * as published by the Free Software Foundation; either version 2.1 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + + +struct rs_job { + int dogtag; + + /** Human-readable job operation name. */ + const char *job_name; + + rs_buffers_t *stream; + + /** Callback for each processing step. */ + rs_result (*statefn)(rs_job_t *); + + /** Final result of processing job. Used by rs_job_s_failed(). */ + rs_result final_result; + + /* XXX: These next two are redundant with their equivalents in the + * signature field. Perhaps we should get rid of them, but + * they're also used in the mksum operation. */ + int block_len; + int strong_sum_len; + + /** Signature that's either being read in, or used for + * generating a delta. */ + rs_signature_t *signature; + + /** Command byte currently being processed, if any. */ + unsigned char op; + + /** If in the middle of reading a signature (rs_loadsig_s_weak()), + * or generating a delta, this contains the weak signature. */ + rs_weak_sum_t weak_sig; + + /** If generating a delta, this is true if we have a valid weak signature and + * can roll it forward. */ + int have_weak_sig; + + /** Lengths of expected parameters. */ + rs_long_t param1, param2; + + struct rs_prototab_ent const *cmd; + rs_mdfour_t output_md4; + + /** Encoding statistics. */ + rs_stats_t stats; + + /** Buffer of data left over in the scoop. Allocation is + * scoop_buf..scoop_alloc, and scoop_next[0..scoop_avail] + * contains valid data. */ + char *scoop_buf; + char *scoop_next; + size_t scoop_alloc; + size_t scoop_avail; + + /** If USED is >0, then buf contains that much write data to + * be sent out. */ + char write_buf[16]; + int write_len; + + /** If \p copy_len is >0, then that much data should be copied + * through from the input. */ + rs_long_t copy_len; + + /** Copy from the basis position. */ + rs_long_t basis_pos, basis_len; + + /** Callback used to copy data from the basis into the output. */ + rs_copy_cb *copy_cb; + void *copy_arg; +}; + + +rs_job_t * rs_job_new(const char *, rs_result (*statefn)(rs_job_t *)); + +void rs_job_check(rs_job_t *job); +const rs_stats_t *rs_job_statistics(rs_job_t *); + +int rs_job_input_is_ending(rs_job_t *job); |